lidavidm commented on code in PR #13338:
URL: https://github.com/apache/arrow/pull/13338#discussion_r892889255
##########
cpp/src/arrow/dataset/file_base.cc:
##########
@@ -265,7 +265,20 @@ Status FileWriter::Write(RecordBatchReader* batches) {
}
Future<> FileWriter::Finish() {
- return FinishInternal().Then([this]() { return destination_->CloseAsync();
});
+ return FinishInternal()
+ .Then([this]() {
+ ARROW_ASSIGN_OR_RAISE(bytes_written_, destination_->Tell());
+ return Status::OK();
+ })
+ .Then([this]() { return destination_->CloseAsync(); });
Review Comment:
Status implicitly converts to Future, so apart from possibly having to
explicitly annotate the return type as Future, you should be able to mix them.
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